tools: fix typo in error message

PR-URL: #35417
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Zeyu Yang <himself65@outlook.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

tools/doc/checkLinks.js

@@ -65,7 +65,7 @@ function checkFile(path) {
         console.error((process.env.GITHUB_ACTIONS ?
           `::error file=${path},line=${line},col=${column}::` : '') +
           `Unordered reference at ${path}:${line}:${column} (` +
-          `"${node.label}" should be before "${previousDefinitionLabel})"`
+          `"${node.label}" should be before "${previousDefinitionLabel}")`
         );
         process.exitCode = 1;
       }